Talked to another K2 rep this morning and he said the toe strap is indeed different on this year's model. He also said the new toe strap could be purchased for $42 but he wouldn't be able to confirm that they're compatible with last year's binding until Monday morning.
I don't see why they wouldn't fit. The plastic frame/chassis is the exact same. Not like they're gonne create a new mold and change the size of the little knob that keeps the ladder straps in.
16 Gnu Swallow Tail Carver . 16 NS West . 15 NS Snowtrooper BIA
16 Burton Genesis X . 15 Now Drive
16 Flow Talon . 14 Flow Hylite